diff --git a/patches/chromium/.patches b/patches/chromium/.patches
index fc294687eb357..c68439f8fb5bb 100644
--- a/patches/chromium/.patches
+++ b/patches/chromium/.patches
@@ -66,7 +66,6 @@ fix_export_zlib_symbols.patch
 web_contents.patch
 webview_fullscreen.patch
 disable_unload_metrics.patch
-fix_add_check_for_sandbox_then_result.patch
 extend_apply_webpreferences.patch
 build_libc_as_static_library.patch
 build_do_not_depend_on_packed_resource_integrity.patch
diff --git a/patches/chromium/fix_add_check_for_sandbox_then_result.patch b/patches/chromium/fix_add_check_for_sandbox_then_result.patch
deleted file mode 100644
index c14035d87100b..0000000000000
--- a/patches/chromium/fix_add_check_for_sandbox_then_result.patch
+++ /dev/null
@@ -1,21 +0,0 @@
-From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
-From: Samuel Attard <samuel.r.attard@gmail.com>
-Date: Wed, 3 Mar 2021 15:52:46 -0800
-Subject: fix: add CHECK for sandbox then_result
-
-It fixes things, we do not know why, we should look at reverting this
-patch and doing further investigation in the future.  This patch cannot
-be upstreamed.
-
-diff --git a/sandbox/linux/bpf_dsl/bpf_dsl.cc b/sandbox/linux/bpf_dsl/bpf_dsl.cc
-index b016a525f274c229f5f1365c6a7e462c8cff0242..31e1b9cd107d659ca79949f970bf0e077bdad340 100644
---- a/sandbox/linux/bpf_dsl/bpf_dsl.cc
-+++ b/sandbox/linux/bpf_dsl/bpf_dsl.cc
-@@ -314,6 +314,7 @@ Elser::Elser(const Elser& elser) = default;
- Elser::~Elser() = default;
- 
- Elser Elser::ElseIf(BoolExpr cond, ResultExpr then_result) const {
-+  CHECK(then_result);
-   return Elser(Cons(std::make_pair(std::move(cond), std::move(then_result)),
-                     clause_list_));
- }